Cannot build for ppc64le

[bkeys]

Godot version

3.4

System information

Fedora, ppc64le

Issue description

I tried to build godot on this platform, and I get the following error, I can replicate this on version 3.4.2 as well:

[bkeys@great-fox godot]$ scons use_llvm=yes target=release_debug p=linuxbsd
scons: Reading SConscript files ...
Platform "linuxbsd" is still called "x11" in Godot 3.x. Building for platform "x11".
Checking for C header file mntent.h... (cached) yes
scons: done reading SConscript files.
scons: Building targets ...
[ 29%] Compiling ==> thirdparty/embree/common/sys/sysinfo.cpp
In file included from thirdparty/embree/common/sys/sysinfo.cpp:5:
In file included from thirdparty/embree/common/sys/intrinsics.h:15:
In file included from /usr/lib64/clang/13.0.0/include/immintrin.h:17:
/usr/lib64/clang/13.0.0/include/ppc_wrappers/mmintrin.h:31:2: error: "Please read comment above.  Use -DNO_WARN_X86_INTRINSICS to disable this error."
#error                                                                         \
 ^
In file included from thirdparty/embree/common/sys/sysinfo.cpp:5:
In file included from thirdparty/embree/common/sys/intrinsics.h:15:
In file included from /usr/lib64/clang/13.0.0/include/immintrin.h:22:
/usr/lib64/clang/13.0.0/include/ppc_wrappers/xmmintrin.h:31:2: error: "Please read comment above. Use -DNO_WARN_X86_INTRINSICS to disable this error."
#error "Please read comment above. Use -DNO_WARN_X86_INTRINSICS to disable this error."
 ^
In file included from thirdparty/embree/common/sys/sysinfo.cpp:5:
In file included from thirdparty/embree/common/sys/intrinsics.h:15:
In file included from /usr/lib64/clang/13.0.0/include/immintrin.h:22:
In file included from /usr/lib64/clang/13.0.0/include/ppc_wrappers/xmmintrin.h:56:
/usr/lib64/clang/13.0.0/include/ppc_wrappers/mmintrin.h:31:2: error: "Please read comment above.  Use -DNO_WARN_X86_INTRINSICS to disable this error."
#error                                                                         \
 ^
In file included from thirdparty/embree/common/sys/sysinfo.cpp:5:
In file included from thirdparty/embree/common/sys/intrinsics.h:15:
In file included from /usr/lib64/clang/13.0.0/include/immintrin.h:27:
/usr/lib64/clang/13.0.0/include/ppc_wrappers/emmintrin.h:32:2: error: "Please read comment above.  Use -DNO_WARN_X86_INTRINSICS to disable this error."
#error "Please read comment above.  Use -DNO_WARN_X86_INTRINSICS to disable this error."
 ^
In file included from thirdparty/embree/common/sys/sysinfo.cpp:5:
In file included from thirdparty/embree/common/sys/intrinsics.h:15:
In file included from /usr/lib64/clang/13.0.0/include/immintrin.h:27:
In file included from /usr/lib64/clang/13.0.0/include/ppc_wrappers/emmintrin.h:43:
/usr/lib64/clang/13.0.0/include/ppc_wrappers/xmmintrin.h:31:2: error: "Please read comment above. Use -DNO_WARN_X86_INTRINSICS to disable this error."
#error "Please read comment above. Use -DNO_WARN_X86_INTRINSICS to disable this error."
 ^
In file included from thirdparty/embree/common/sys/sysinfo.cpp:5:
In file included from thirdparty/embree/common/sys/intrinsics.h:15:
In file included from /usr/lib64/clang/13.0.0/include/immintrin.h:32:
/usr/lib64/clang/13.0.0/include/ppc_wrappers/pmmintrin.h:35:2: error: "Please read comment above.  Use -DNO_WARN_X86_INTRINSICS to disable this warning."
#error "Please read comment above.  Use -DNO_WARN_X86_INTRINSICS to disable this warning."
 ^
In file included from thirdparty/embree/common/sys/sysinfo.cpp:5:
In file included from thirdparty/embree/common/sys/intrinsics.h:15:
In file included from /usr/lib64/clang/13.0.0/include/immintrin.h:32:
In file included from /usr/lib64/clang/13.0.0/include/ppc_wrappers/pmmintrin.h:44:
/usr/lib64/clang/13.0.0/include/ppc_wrappers/emmintrin.h:32:2: error: "Please read comment above.  Use -DNO_WARN_X86_INTRINSICS to disable this error."
#error "Please read comment above.  Use -DNO_WARN_X86_INTRINSICS to disable this error."
 ^
In file included from thirdparty/embree/common/sys/sysinfo.cpp:5:
In file included from thirdparty/embree/common/sys/intrinsics.h:15:
In file included from /usr/lib64/clang/13.0.0/include/immintrin.h:37:
In file included from /usr/lib64/clang/13.0.0/include/ppc_wrappers/tmmintrin.h:33:
/usr/lib64/clang/13.0.0/include/ppc_wrappers/pmmintrin.h:35:2: error: "Please read comment above.  Use -DNO_WARN_X86_INTRINSICS to disable this warning."
#error "Please read comment above.  Use -DNO_WARN_X86_INTRINSICS to disable this warning."
 ^
In file included from thirdparty/embree/common/sys/sysinfo.cpp:5:
In file included from thirdparty/embree/common/sys/intrinsics.h:15:
In file included from /usr/lib64/clang/13.0.0/include/immintrin.h:42:
/usr/lib64/clang/13.0.0/include/ppc_wrappers/smmintrin.h:25:2: error: "Please read comment above.  Use -DNO_WARN_X86_INTRINSICS to disable this error."
#error                                                                         \
 ^
In file included from thirdparty/embree/common/sys/sysinfo.cpp:5:
In file included from thirdparty/embree/common/sys/intrinsics.h:15:
In file included from /usr/lib64/clang/13.0.0/include/immintrin.h:42:
In file included from /usr/lib64/clang/13.0.0/include/ppc_wrappers/smmintrin.h:35:
/usr/lib64/clang/13.0.0/include/ppc_wrappers/emmintrin.h:32:2: error: "Please read comment above.  Use -DNO_WARN_X86_INTRINSICS to disable this error."
#error "Please read comment above.  Use -DNO_WARN_X86_INTRINSICS to disable this error."
 ^
In file included from thirdparty/embree/common/sys/sysinfo.cpp:5:
In file included from thirdparty/embree/common/sys/intrinsics.h:15:
In file included from /usr/lib64/clang/13.0.0/include/immintrin.h:47:
In file included from /usr/lib64/clang/13.0.0/include/wmmintrin.h:13:
/usr/lib64/clang/13.0.0/include/ppc_wrappers/emmintrin.h:32:2: error: "Please read comment above.  Use -DNO_WARN_X86_INTRINSICS to disable this error."
#error "Please read comment above.  Use -DNO_WARN_X86_INTRINSICS to disable this error."
 ^
In file included from thirdparty/embree/common/sys/sysinfo.cpp:5:
In file included from thirdparty/embree/common/sys/intrinsics.h:15:
In file included from /usr/lib64/clang/13.0.0/include/immintrin.h:47:
In file included from /usr/lib64/clang/13.0.0/include/wmmintrin.h:15:
/usr/lib64/clang/13.0.0/include/__wmmintrin_aes.h:37:19: error: use of undeclared identifier '__builtin_ia32_aesenc128'
  return (__m128i)__builtin_ia32_aesenc128((__v2di)__V, (__v2di)__R);
                  ^
/usr/lib64/clang/13.0.0/include/__wmmintrin_aes.h:57:19: error: use of undeclared identifier '__builtin_ia32_aesenclast128'
  return (__m128i)__builtin_ia32_aesenclast128((__v2di)__V, (__v2di)__R);
                  ^
/usr/lib64/clang/13.0.0/include/__wmmintrin_aes.h:77:19: error: use of undeclared identifier '__builtin_ia32_aesdec128'
  return (__m128i)__builtin_ia32_aesdec128((__v2di)__V, (__v2di)__R);
                  ^
/usr/lib64/clang/13.0.0/include/__wmmintrin_aes.h:97:19: error: use of undeclared identifier '__builtin_ia32_aesdeclast128'
  return (__m128i)__builtin_ia32_aesdeclast128((__v2di)__V, (__v2di)__R);
                  ^
/usr/lib64/clang/13.0.0/include/__wmmintrin_aes.h:114:19: error: use of undeclared identifier '__builtin_ia32_aesimc128'; did you mean '__builtin_asinf128'?
  return (__m128i)__builtin_ia32_aesimc128((__v2di)__V);
                  ^
/usr/lib64/clang/13.0.0/include/__wmmintrin_aes.h:37:19: note: '__builtin_asinf128' declared here
  return (__m128i)__builtin_ia32_aesenc128((__v2di)__V, (__v2di)__R);
                  ^
/usr/lib64/clang/13.0.0/include/__wmmintrin_aes.h:114:44: error: cannot initialize a parameter of type '__float128' with an rvalue of type '__v2di' (vector of 2 'long long' values)
  return (__m128i)__builtin_ia32_aesimc128((__v2di)__V);
                                           ^~~~~~~~~~~
In file included from thirdparty/embree/common/sys/sysinfo.cpp:5:
In file included from thirdparty/embree/common/sys/intrinsics.h:15:
In file included from /usr/lib64/clang/13.0.0/include/immintrin.h:52:
/usr/lib64/clang/13.0.0/include/clflushoptintrin.h:22:3: error: use of undeclared identifier '__builtin_ia32_clflushopt'
  __builtin_ia32_clflushopt(__m);
  ^
In file included from thirdparty/embree/common/sys/sysinfo.cpp:5:
In file included from thirdparty/embree/common/sys/intrinsics.h:15:
In file included from /usr/lib64/clang/13.0.0/include/immintrin.h:57:
/usr/lib64/clang/13.0.0/include/clwbintrin.h:33:3: error: use of undeclared identifier '__builtin_ia32_clwb'
  __builtin_ia32_clwb(__p);
  ^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.
scons: *** [thirdparty/embree/common/sys/sysinfo.x11.opt.tools.64.llvm.o] Error 1
scons: building terminated because of errors.
[Time elapsed: 00:00:10.933]

It looks like it is trying to use x86 specific instructions.

Steps to reproduce

clone the godot repo, and check into the 3.4 branch, run the following command:
scons use_llvm=yes target=release_debug p=linuxbsd

Minimal reproduction project

No response

[Calinou]

Related to #49225 and #55192.

This happens because the version of Embree, OpenImageDenoise and WebM used in Godot are x86-only. Adding module_embree_enabled=no module_raycast_enabled=no module_webm_enabled=no to the SCons command line should make it possible to build Godot on ARM and PowerPC.

[bkeys]

Now the build is successful, but the linker fails with:
/usr/bin/ld: drivers/libdrivers.x11.opt.tools.64.llvm.a(pngrutil.x11.opt.tools.64.llvm.o): in function `png_init_filter_functions': /home/bkeys/Devel/Software/godot/thirdparty/libpng/pngrutil.c:4304: undefined reference to `png_init_filter_functions_vsx'
At which point I question if that is a ppc64le/arm specific issue

[aaronfranke]

@bkeys Did you try adding arch=ppc64 in the scons command?

It should auto-detect the architecture from this list but since your filename contains .64. then it looks like it's not detecting it. What is the output of import platform then platform.machine() in Python on your system?

[bkeys]

Yes I did a clean build and scons gave me the same linker error from before.
As for python, it gave me the output of 'ppc64le'

[aaronfranke]

@bkeys Sorry for sending you on a wild goose chase, I've figured out the problem. It's in 3.5 but not 3.4.

[bkeys]

Well I have tried to build on master and I still get the error about the undefined reference to libpng, so what are the next steps for me to try to build Godot?

[aaronfranke]

@q66

[q66]

if you want a patch for stable releases: https://github.com/void-linux/void-packages/blob/master/srcpkgs/godot/patches/ppc.patch

the current workaround for libpng issues is to build with system libpng, another workaround is to get -DPNG_POWERPC_VSX_OPT=0 into your compiler flags

actual out of box solution would be to import the vsx intrinsics sources from https://github.com/glennrp/libpng/tree/libpng16/powerpc into the bundled libpng and add them into the build

[bkeys]

How do I go about using the system libpng?

[q66]

builtin_libpng=false?